TY - JOUR 
A1 - Egea López, Estebán
AU - Vales Alonso, Javier
AU - Martínez Sala, Alejandro Santos
AU - García Haro, Juan
AU - Pavón Mariño, Pablo
AU - Bueno Delgado, María Víctoria
T1 - A wireless  sensor networks MAC protocol for real-time applications.
Y1 - 2008
SN - 1617-4909
UR - http://hdl.handle.net/10317/424
AB - Wireless Sensor Networks (WSN) are designed for data gathering and processing, with particular requirements: low hardware complexity, low energy consumption, special traffic pattern support, scalability, and in some cases, real-time operation. In this paper we present the Virtual TDMA for Sensors (VTS) MAC protocol, which intends to support the previous features, focusing particularly on real-time operation. VTS adaptively creates a TDMA arrangement with a number of timeslots equal to the actual number of nodes in range. Thus, VTS achieves an optimal throughput performance compared to TDMA protocols with fixed size of frame. The frame is set up and maintained by a distributed procedure, which allows sensors to asynchronously join and leave the frame. In addition, duty cycle is increased or decreased in order to keep latency constant below a given deadline. Therefore, a major advantage of VTS is that it guarantees a bounded latency, which allows soft real-time applications.
KW - Ingeniería Telemática
KW - Wireless sensor networks
KW - MAC protocols
KW - Real-time applications
LA - eng
PB - Springer Verlag
ER -